Beast Wars II: Lio Convoy in Imminent Danger! (ビーストウォーズII ライオコンボイ危機一髪!, Bīsuto Wōzu Sekando: Raio Konboi Kiki Ippatsu!) is a 1998 Japanese film based on the Beast Wars II: Super Life-Form Transformers anime series, a Japan-only spin-off of the Beast Wars television show. The film was never released outside Japan because Beast Wars II aired only in Japan, as a filler series that aired between dubbing the first and second seasons of Beast Wars in Japan. It was released as part of Beast Wars Special Super Lifeform Transformers (ビーストウォーズ スペーシャル 超生命体トランスフォーマー), as one of three features within it. The others are Clash! Beast Warriors, which is a clip show that recaps the first season of Beast Wars, and Beast Wars Metals, which was the Japanese dubbed version of the Beast Wars season 2 episode "Bad Spark". The entire special was distributed to Japanese theatres by Toei Company, though Ashi Productions provided the animation for the Beast Wars II portion of the movie.

The film revolves around the Maximals, led by Lio Convoy; the Predacons, led by Galvatron; and a mysterious device that has crashed on Planet Gaia (a future version of Earth), leading to the arrival of Maximal warrior, and the protagonist of the original Beast Wars series, Optimus Primal. Galvatron also uses the device to summon a monster Decepticon called Majin Zarak, who threatens to destroy all the Maximals.